How to convert PDF to TIFF from URL asynchronously for PDF to image API in PowerShell using PDF.co Web API

How to convert PDF to TIFF from URL asynchronously for PDF to image API in PowerShell: How To Tutorial

The documentation is designed to help you to implement the features on your side. PDF.co Web API was made to help with PDF to image API in PowerShell. PDF.co Web API is the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and pdf.

You will save a lot of time on writing and testing code as you may just take the code below and use it in your application. Sample code in PowerShell is all you need. Copy-paste it to your the code editor, then add a reference to PDF.co Web API and you are ready to try it! You can use these PowerShell sample examples in one or many applications.

PDF.co Web API – free trial version is on available our website. Also, there are other code samples to help you with your PowerShell application included into trial version.

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ConvertPdfToTiffFromUrlAsynchronously.ps1
      
# Cloud API asynchronous "PDF To TIFF" job example. # Allows to avoid timeout errors when processing huge or scanned PDF documents. # The authentication key (API Key). # Get your own by registering at https://app.pdf.co/documentation/api $API_KEY = "***********************************" # Direct URL of source PDF file. $SourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-to-image/sample.pdf" # Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'. $Pages = "" # PDF document password. Leave empty for unprotected documents. $Password = "" # Destination TIFF file name $DestinationFile = ".\result.tif" # (!) Make asynchronous job $Async = $true # Prepare URL for `PDF To TIFF` API call $query = "https://api.pdf.co/v1/pdf/convert/to/tiff?name={0}&password={1}&pages={2}&url={3}&async={4}" -f ` $(Split-Path $DestinationFile -Leaf), $Password, $Pages, $SourceFileUrl, $Async $query = [System.Uri]::EscapeUriString($query) try { # Execute request $jsonResponse = Invoke-RestMethod -Method Get -Headers @{ "x-api-key" = $API_KEY } -Uri $query if ($jsonResponse.error -eq $false) { # Asynchronous job ID $jobId = $jsonResponse.jobId # URL of generated TIFF file that will available after the job completion $resultFileUrl = $jsonResponse.url # Check the job status in a loop. do { $statusCheckUrl = "https://api.pdf.co/v1/job/check?jobid=" + $jobId $jsonStatus = Invoke-RestMethod -Method Get -Headers @{ "x-api-key" = $API_KEY } -Uri $statusCheckUrl # Display timestamp and status (for demo purposes) Write-Host "$(Get-date): $($jsonStatus.status)" if ($jsonStatus.status -eq "success") { # Download TIFF file Invoke-WebRequest -Headers @{ "x-api-key" = $API_KEY } -OutFile $DestinationFile -Uri $resultFileUrl Write-Host "Generated TIFF file saved as `"$($DestinationFile)`" file." break } elseif ($jsonStatus.status -eq "working") { # Pause for a few seconds Start-Sleep -Seconds 3 } else { Write-Host $jsonStatus.status break } } while ($true) } else { # Display service reported error Write-Host $jsonResponse.message } } catch { # Display request error Write-Host $_.Exception }

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run.bat
      
@echo off powershell -NoProfile -ExecutionPolicy Bypass -Command "& .\ConvertPdfToTiffFromUrlAsynchronously.ps1" echo Script finished with errorlevel=%errorlevel% pause

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